NCV84120DR2G

Overview

The NCV84120DR2G is a single-channel, self-protected high-side driver from onsemi, designed for automotive and industrial load switching applications. It integrates an N-channel power switch with a maximum continuous output current of 9A and a typical on-resistance of 120 mΩ. The device operates within a supply voltage range of 4V to 28V. Key electrical features include adjustable current limiting, analog current sensing via a dedicated pin, and comprehensive protection mechanisms such as overtemperature shutdown with auto-restart, overvoltage clamping, and UVLO. It is housed in an 8-SOIC package and meets AEC-Q100 automotive qualification standards.

Feature Summary

• Integrates active surge current management to control inrush currents during load connection.
• Provides precise analog current monitoring through a dedicated detection pin for system feedback.
• Includes advanced diagnostic capabilities for detecting ground shorts, open loads, and VDD faults.
• Features thermal protection with automatic restart functionality to recover from overheating events.

Applications

• Automotive lighting systems including bulbs and LEDs
• Solenoid and valve actuation circuits
• General purpose actuator control
• Industrial load switching

Procurement Notes

Verify the specific suffix DR2G corresponds to the required tape and reel packaging configuration. Confirm that the AEC-Q100 qualification aligns with your project's automotive reliability requirements. Ensure the SOIC-8 package dimensions match your PCB footprint constraints. Check for any recent Product Change Notifications (PCN) regarding material or manufacturing site updates before finalizing procurement.

Selection Notes

Select this component when a single-channel high-side switch with integrated protection and analog current sensing is required. It is suitable for driving inductive loads like solenoids where surge management is critical. Consider the 9A current capability and 120 mΩ resistance for thermal performance analysis. Ensure the input logic levels are compatible with the non-inverting interface. Verify that the operating temperature range covers the intended environment.

Part Context

The NCV84120 belongs to onsemi's portfolio of smart high-side drivers tailored for robust load management. It combines gate drive functionality with power switch integration to simplify circuit design. The device targets applications requiring reliable switching of various loads with minimal external components. Its automotive-grade qualification ensures suitability for demanding vehicle environments.

Replacement Considerations

Consult official documentation for verified substitute part numbers. Cross-reference pinouts and electrical specifications carefully when considering alternatives.

FAQ

How does the NCV84120 handle overtemperature conditions?

The device incorporates overtemperature protection that shuts down the output. It features an automatic restart function that attempts to resume operation once the junction temperature decreases to a safe level.

What diagnostic functions are available?

The NCV84120 provides fault indication for short-to-ground, short-to-VDD, and open-load conditions. It also supports analog current sensing for real-time load monitoring.

Is the NCV84120 qualified for automotive use?

Yes, the NCV84120 is AEC-Q100 qualified, making it suitable for automotive applications requiring high reliability and durability.